private Task <PathTreeNode> CreateDirectoryTreeAsync([NotNull] IEnumerable <string> files)
{
var tree = new PathTreeNode();
foreach (var file in files)
{
var node = tree;
foreach (var part in Path.GetDirectoryName(file).GetPathComponents())
{
node = node.Lookup(part) ?? node.Insert(part);
}
node.AddFile(file);
}
return(Task.FromResult(tree));
}
private async Task <long> ValidateUnreachableAsync([NotNull] ILogger logger, [NotNull] PathTreeNode tree, ValidateMode mode)
{
logger.Info(mode == ValidateMode.Delete
? $"[{DateTime.Now:s}] Delete unreachable files{myId}..."
: $"[{DateTime.Now:s}] Validating unreachable files{myId}...");
long deleted = 0;
var stack = new Stack <PathTreeNode>();
stack.Push(tree);
while (stack.Count > 0)
{
var node = stack.Pop();
if (node.HasChildren)
{
foreach (var child in node.Children)
{
stack.Push(child);
}
}
if (!node.HasReferences)
{
foreach (var file in node.Files)
{
if (mode == ValidateMode.Delete)
{
logger.Info($" Deleting {file}");
Interlocked.Increment(ref deleted);
await myStorage.DeleteAsync(file);
}
else
{
logger.Error($"The file {file} should be deleted as unreferenced");
if (mode == ValidateMode.Fix)
{
logger.Fix($"The file {file} will be deleted as unreferenced");
await myStorage.DeleteAsync(file);
}
}
}
}
}
return(deleted);
}
